EP3289923B1 - Retracting mechanism for a movable furniture part - Google Patents

Retracting mechanism for a movable furniture part Download PDF

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Publication number
EP3289923B1
EP3289923B1 EP17167002.9A EP17167002A EP3289923B1 EP 3289923 B1 EP3289923 B1 EP 3289923B1 EP 17167002 A EP17167002 A EP 17167002A EP 3289923 B1 EP3289923 B1 EP 3289923B1
Authority
EP
European Patent Office
Prior art keywords
respect
path
furniture part
catching
retracting mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP17167002.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3289923A1 (en
Inventor
Ken-Ching Chen
Hsiu-Chiang Liang
Chun-Chiang Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
King Slide Works Co Ltd
King Slide Technology Co Ltd
Original Assignee
King Slide Works Co Ltd
King Slide Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by King Slide Works Co Ltd, King Slide Technology Co Ltd filed Critical King Slide Works Co Ltd
Publication of EP3289923A1 publication Critical patent/EP3289923A1/en
Application granted granted Critical
Publication of EP3289923B1 publication Critical patent/EP3289923B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/453—Actuated drawers
    • A47B88/46—Actuated drawers operated by mechanically-stored energy, e.g. by springs
    • A47B88/467—Actuated drawers operated by mechanically-stored energy, e.g. by springs self-closing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/49—Sliding drawers; Slides or guides therefor with double extensible guides or parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/473—Braking devices, e.g. linear or rotational dampers or friction brakes; Buffers; End stops
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/16—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F5/00—Braking devices, e.g. checks; Stops; Buffers
    • E05F5/003—Braking devices, e.g. checks; Stops; Buffers for sliding wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/20—Combinations of elements
    • E05Y2800/23—Combinations of elements of elements of different categories
    • E05Y2800/24—Combinations of elements of elements of different categories of springs and brakes

Definitions

  • the present invention relates to a retracting mechanism and more particularly to one applicable to a movable furniture part.
  • a drawer In a furniture system such as a drawer system, a drawer is typically designed to be opened and closed with respect to a cabinet frame via a pair of slide rail assemblies. According to the prior art, a drawer being moved from an opened position to a retracted position with respect to a cabinet frame can be automatically brought to the retracted position by a retracting mechanism in the last stage of the retracting process.
  • US Patent No. 8,905,498 B2 discloses a retracting device for retracting a movably supported furniture part with respect to a furniture body.
  • the retracting device (8) includes a main body (9), an entrainment member (12), a slider (16), a spring holder (18), and a spring device (17).
  • the main body (9) has a displacement path (10) and a control curve (21).
  • the slider (16) is moved along the displacement path (10) in response to the entrainment member (12) being driven by a coupling element (14).
  • the spring device (17) applies an elastic force to the spring holder (18).
  • the spring holder (18) is configured to move along the control curve (21) and has a tooth arrangement (22a) engageable with a tooth arrangement (22b) of the slider (16).
  • US 2013/088132 A1 discloses a retracting mechanism according to the preamble of claim 1.
  • the retracting mechanism comprises a main body, including a first and a second path, an entrainment member and a displaceable slider connected to each other.
  • the retracting mechanism further comprises a spring holder connected to the entrainment member and a spring device for applying an elastic force to the entrainment member.
  • the entrainment member and the main body are movable with respect to each other through the second path and the spring holder includes a guide portion in the first path.
  • the first path includes a guiding section and a first bent section adjacent to the guiding section.
  • the second path includes a linear section and a second bent section bent with respect to and in communication with the linear section.
  • the guide portion of the spring holder is moved from the guiding section of the first part of the main body into engagement with the first bent section when one of the main body and the entrainment member reaches a first predetermined position with respect to the other by being moved in a first direction.
  • the entrainment member is moved from the linear section of the second path of the main body into engagement with the second bent section to maintain the elastic restoring force of the spring device when the one of the body and the entrainment member is reaches a second predetermined position with respect to the other by being further moved in the first direction, the elastic restoring force acting in a second direction.
  • the present invention relates to a retracting mechanism according to claim 1.
  • the retracting mechanism allows a user to operate a movable furniture part effortlessly.
  • the retracting mechanism comprises a body including a first path and a second path; a catching member and a connecting member connected to each other; a supporting member connected to the connecting member; and a resilient member for applying an elastic restoring force to the catching member.
  • the catching member and the body are movable with respect to each other through the second path, and the supporting member includes a supporting portion in the first path.
  • the first path includes a guiding section and a first bent section adjacent to the guiding section
  • the second path includes a linear section and a second bent section bent with respect to and in communication with the linear section.
  • the supporting portion of the supporting member is moved from the guiding section of the first path of the body into engagement with the first bent section when one of the body and the catching member reaches a first predetermined position with respect to the other by being moved in a first direction.
  • the catching member is moved from the linear section of the second path of the body into engagement with the second bent section to maintain the elastic restoring force of the resilient member, when the one of the body and the catching member reaches a second predetermined position with respect to the other by being further moved in the first direction, the elastic restoring force acting in a second direction.
  • the supporting member and the connecting member are pivotally connected by a pivotal connection portion, wherein the pivotal connection portion is in the second path.
  • the guiding section of the first path includes a first end and a second end opposite the first end, there is a height difference between the first end and the second end, and the first bent section of the first path is adjacent to the second end of the guiding section.
  • the body includes a first engaging portion and a second engaging portion, the connecting member and the catching member are pivotally connected.
  • the resilient member accumulates an elastic restoring force in the second direction while one of the body and the catching member is being moved with respect to the other in the first direction, and the supporting portion of the supporting member is pivoted with respect to the connecting member into engagement with the first engaging portion of the body when the one of the body and the catching member reaches the first predetermined position with respect to the other by being moved in the first direction.
  • the supporting portion of the supporting member is engaged with the first engaging portion of the body while the one of the body and the catching member is being further moved with respect to the other in the first direction, thus assisting in overcoming the elastic restoring force of the resilient member in the second direction.
  • the catching member is pivoted with respect to the connecting member into engagement with the second engaging portion of the body when the one of the body and the catching member reaches the second predetermined position by being further moved with respect to the other in the first direction, thus maintaining the elastic restoring force of the resilient member in the second direction.
  • the first engaging portion is adjacent to the first bent section, and the second engaging portion is adjacent to the second bent section.
  • the retracting mechanism is applicable to a first furniture part and a second furniture part, in which the second furniture part is movable in the first direction from a retracted position with respect to the first furniture part, the retracting mechanism is mountable on the second furniture part, and the second furniture part is retractable to the retracted position with respect to the first furniture by the elastic restoring force of the resilient member.
  • the catching member is engaged with a fixing member of the first furniture part when the second furniture part is at the retracted position with respect to the first furniture part.
  • the connecting member and the catching member are pivotally connected.
  • the supporting portion of the supporting member is pivoted with respect to the connecting member from the guiding section of the first path of the body into engagement with the first bent section when the second furniture part reaches the first predetermined position with respect to the first furniture part by being moved in the first direction from the retracted position.
  • the catching member is pivoted with respect to the connecting member, is thus disengaged from the fixing member of the first furniture part, and is moved from the linear section of the second path of the body into engagement with the second bent section to maintain the elastic restoring force of the resilient member.
  • the resilient member is mounted between the supporting member and the body.
  • the guiding section is sloped.
  • the connecting member and the catching member are pivotally connected by a first shaft, wherein the first shaft is in the second path.
  • the supporting portion of the supporting member can be pressed against the guiding section in order to move along the guiding section and approach the first bent section progressively.
  • the retracting mechanism further includes a buffer device arranged between the body and the catching member.
  • the second direction and the first direction are opposite directions.
  • the furniture system 20 in an embodiment of the present invention includes a cabinet frame 22 and at least one drawer 24.
  • a plurality of drawers 24 are provided by way of example.
  • each drawer 24 is mounted to the cabinet frame 22 by a pair of slide rail assemblies 26.
  • each slide rail assembly 26 includes a first rail 28 and a second rail 30 longitudinally movable with respect to the first rail 28.
  • Each slide rail assembly 26 preferably further includes a third rail 32 for increasing the maximum distance for which the corresponding second rail 30 can be moved with respect to the corresponding first rail 28.
  • the first rails 28 are connected (e.g., fixedly connected) to the cabinet frame 22.
  • the second rails 30 are configured to support the drawers 24 so that each drawer 24 can be easily opened and closed with respect to the cabinet frame 22 or the corresponding first rails 28 via the corresponding second rails 30.
  • first furniture part an arbitrary one of the first rails 28 (or the cabinet frame 22)
  • the corresponding second rail 30 (or the corresponding drawer 24) is referred to as the second furniture part.
  • the first furniture part and the second furniture part are not limited to the foregoing.
  • FIG. 2 shows a retracting mechanism 34 in this embodiment.
  • the retracting mechanism 34 is applied to the first furniture part and the second furniture part (e.g., the first rail 28 and the second rail 30 of the slide rail assembly 26 shown) of the furniture system 20.
  • the third rail 32 of the slide rail assembly 26 is movably mounted between the first rail 28 and the second rail 30.
  • the first rail 28 includes a fixing member 36 with a fixing portion 38.
  • the fixing member 36 is fixedly connected to the first rail 28 at a position adjacent to the rear end of the first rail 28.
  • the retracting mechanism 34 is arranged on the second rail 30 by way of example; that is to say, the retracting mechanism 34 can be moved with respect to the first rail 28 along with the second rail 30.
  • the retracting mechanism 34 includes at least one body 40, a catching member 42, a connecting member 44, a supporting member 46, and a resilient member 48.
  • the retracting mechanism 34 further includes a buffer device 50.
  • the retracting mechanism 34 has two bodies 40 by way of example, and the two bodies 40 are assembled together by a connecting means such as mechanical engagement, fastening, or threaded connection, without limitation.
  • the two bodies 40 have substantially corresponding structural configurations and each serve as a structure where the catching member 42, the connecting member 44, the supporting member 46, the resilient member 48, and/or the buffer device 50 can be mounted.
  • Each body 40 includes a first path 52 and a second path 54 spaced apart from the first path 52 (see FIG. 5 and FIG. 7 ).
  • the first path 52 includes a guiding section 55 with a first end 53a and a second end 53b.
  • the second end 53b is opposite and away from the first end 53a, and there is a height difference h between the first end 53a and the second end 53b.
  • the guiding section 55 is preferably sloped and may be an inclined or curved surface for example.
  • the first path 52 further includes a first bent section 57 adjacent to the second end 53b of the guiding section 55.
  • the second path 54 includes a linear section 58a and a second bent section 58b, wherein the second bent section 58b is curved with respect to and in communication with the linear section 58a.
  • the linear section 58a of the second path 54 has a greater length than the guiding section 55 of the first path 52.
  • each body 40 further includes a first engaging portion 60 and a second engaging portion 62. The first engaging portion 60 is adjacent to the first bent portion 57 while the second engaging portion 62 is adjacent to the second bent section 58b.
  • the catching member 42 and the bodies 40 can move with respect to each other.
  • the catching member 42 and the bodies 40 can move with respect to each other via the second paths 54.
  • the catching member 42 is connected to the connecting member 44.
  • the catching member 42 and the connecting member 44 are pivotally connected by a first shaft 64.
  • the catching member 42 includes the first shaft 64 to enable pivotal connection with the connecting member 44.
  • the first shaft 64 is in the second paths 54, e.g., in the linear sections 58a of the second paths 54.
  • the catching member 42 further includes a second shaft 66, a catching feature 68, and a disengaging feature 70.
  • the second shaft 66 is also in the second paths 54.
  • the catching feature 68 is an engaging structure
  • the disengaging feature 70 is a wall, both by way of example.
  • the supporting member 46 is connected to the connecting member 44.
  • the supporting member 46 and the connecting member 44 are pivotally connected by a pivotal connection portion 72.
  • the supporting member 46 includes the pivotal connection portion 72 to enable pivotal connection with the connecting member 44.
  • the pivotal connection portion 72 is in the second paths 54, e.g., in the linear sections 58a of the second paths 54.
  • the supporting member 46 includes a supporting portion 74 in the first paths 52.
  • the supporting member 46 further includes a mounting portion 78.
  • the resilient member 48 is configured to apply an elastic restoring force acting between the catching member 42 and the bodies 40.
  • the resilient member 48 is mounted between the supporting member 46 (e.g., the mounting portion 78 of the supporting member 46) and connecting portions 80 of the bodies 40.
  • the buffer device 50 is arranged between the bodies 40 and the catching member 42 and includes a cylinder 82 and a buffer rod 84, wherein the buffer rod 84 is configured to be pressed against the catching member 42.
  • a cylinder 82 and a buffer rod 84 As the working principle of the buffer device 50 is well known in the art, further description is omitted herein for the sake of brevity.
  • the retracting mechanism 34 which is arranged on one of the second rails 30 of the furniture system 20 and can therefore be used to represent the second rail 30, is shown at a retracted position P with respect to the fixing member 36, which is part of the corresponding first rail 28 and can therefore be used to represent the corresponding first rail 28. That is to say, in the state shown in FIG. 6 and FIG. 7 , the second rail 30 corresponding to the retracting mechanism 34 is at the retracted position P with respect to the first rail 28 corresponding to the fixing member 36.
  • the catching feature 68 of the catching member 42 of the retracting mechanism 34 is engaged with the fixing portion 38 of the fixing member 36 of the first rail 28.
  • the catching member 42 responds to the elastic restoring force of the resilient member 48 by keeping the retracting mechanism 34 at the retracted position P.
  • the buffer rod 84 of the buffer device 50 is in a retracted state with respect to the cylinder 82.
  • one of the body 40 and the catching member 42 is moved with respect to the other in a first direction D1.
  • the body 40 is moved in the first direction D1 with respect to the catching member 42 due to the fact that the catching member 42 is engaged with the fixing portion 38 of the fixing member 36 of the first rail 28.
  • the resilient member 48 accumulates an elastic restoring force in a second direction D2 in response to the movement of the body 40, wherein the second direction D2 is the opposite direction of the first direction D1.
  • the user's operating force therefore, must be greater than the elastic restoring force of the resilient member 48 in order to move the body 40 in the first direction D1.
  • the buffer rod 84 of the buffer device 50 is gradually extended with respect to the cylinder 82.
  • the second shaft 66 of the catching member 42 is moved along the linear section 58a of the second path 54 of the body 40 and thus approaches the second bent section 58b gradually, and the supporting portion 74 of the supporting member 46 is moved along the guiding section 55 of the first path 52 of the body 40 and thus approaches the first bent section 57 gradually.
  • the supporting portion 74 of the supporting member 46 is preferably pressed against the guiding section 55 so as to approach the first bent section 57 progressively along the guiding section 55 (see FIG. 9 ).
  • the second shaft 66 of the catching member 42 can be further moved along the linear section 58a of the second path 54 of the body 40 to approach the second bent section 58b gradually.
  • the supporting portion 74 of the supporting member 46 is pivoted with respect to the connecting member 44 along the guiding section 55, enters the first bent section 57, and becomes engaged with the first engaging portion 60. In other words, the supporting portion 74 of the supporting member 46 is moved from the guiding section 55 of the first path 52 of the body 40 into engagement with the first bent section 57 (see FIG. 9 and FIG. 11 ).
  • the supporting portion 74 of the supporting member 46 is engaged with the first engaging portion 60 of the body 40 to enable the body 40 to overcome the elastic restoring force of the resilient member 48, which force acts in the second direction D2. That is to say, with the supporting portion 74 of the supporting member 46 engaged with the first engaging portion 60 and serving as a fulcrum to provide leverage, the operating force required to be applied to the second rail 30 or the body 40 can be reduced, allowing the operator to move the second rail 30 or the body 40 in the first direction D1 with ease (see FIG. 13 ).
  • the catching member 42 is pivoted with respect to the connecting member 44 and is thereby disengaged from the fixing portion 38 of the fixing member 36 of the first rail 28, and the second shaft 66 of the catching member 42 is engaged with the second engaging portion 62 of the body 40.
  • the catching member 42 is moved from the linear section 58a of the second path 54 of the body 40 into engagement with the second bent section 58b (see FIG. 15 ) to maintain the elastic restoring force of the resilient member 48, which force acts in the second direction D2.
  • the supporting member 46 is further pivoted with respect to the connecting member 44, and the buffer rod 84 of the buffer device 50 is fully extended with respect to the cylinder 82 into a buffer-ready state.
  • the second rail 30 is retracted with respect to the first rail 28 in the second direction D2 until the retracted position P is reached, and the body 40 is thus retracted in the second direction D2 to the retracted position P with respect to the catching member 42 (the process of which can be understood by referring sequentially to FIG. 12 , FIG. 10 , FIG. 8 , and FIG. 6 ).
  • the buffer device 50 provides a buffering effect during the process of retraction toward the retracted position P.
  • the buffering mechanism is well known in the art, a detailed description thereof is omitted herein for the sake of brevity.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drawers Of Furniture (AREA)
EP17167002.9A 2016-08-31 2017-04-19 Retracting mechanism for a movable furniture part Active EP3289923B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW105128337A TWI599332B (zh) 2016-08-31 2016-08-31 用於可活動傢俱件的回歸機構

Publications (2)

Publication Number Publication Date
EP3289923A1 EP3289923A1 (en) 2018-03-07
EP3289923B1 true EP3289923B1 (en) 2018-11-21

Family

ID=58578888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17167002.9A Active EP3289923B1 (en) 2016-08-31 2017-04-19 Retracting mechanism for a movable furniture part

Country Status (4)

Country Link
US (1) US9907400B1 (ja)
EP (1) EP3289923B1 (ja)
JP (1) JP6474452B2 (ja)
TW (1) TWI599332B (ja)

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KR101896468B1 (ko) * 2013-09-02 2018-09-11 삼성전자주식회사 냉장고
AT516159B1 (de) * 2014-10-30 2016-03-15 Blum Gmbh Julius Einzugsvorrichtung für Möbelteile
AT517603B1 (de) * 2015-11-20 2017-03-15 Blum Gmbh Julius Einzugsvorrichtung für bewegbare Möbelteile
TWI616165B (zh) * 2017-03-07 2018-03-01 川湖科技股份有限公司 用於可活動傢俱組件的回歸機構

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TWI338568B (en) * 2007-12-28 2011-03-11 King Slide Works Co Ltd Slide assembly having a homing device
TWM335193U (en) * 2007-12-31 2008-07-01 Nan Juen Int Co Ltd Structure for automatic retractable slide rail of drawer
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Also Published As

Publication number Publication date
JP2018033933A (ja) 2018-03-08
JP6474452B2 (ja) 2019-02-27
TWI599332B (zh) 2017-09-21
US20180055225A1 (en) 2018-03-01
EP3289923A1 (en) 2018-03-07
US9907400B1 (en) 2018-03-06
TW201811229A (zh) 2018-04-01

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